Describe the relationships among myelin, the neurilemma,and nodes of Ranvier.

Q: Explain the relevance of neuroglia to the regeneration of damaged nerve fibers?

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: Identify the three classes of neurons and describe theirrelationship to each other

A: Neurons are the structural, functional or as a whole the fundamental units of nervous system or…

Q: Discuss the mechanism of action-potential in neurons?

A: Introduction: All excitable tissue like nerve and muscle tissue have membrane potential. The…

Q: Which of these would affect an electrical synapse?

A: Synapses are gaps that separate the terminal buttons of one neuron from receptors of another neuron.…

Q: Unmyelinated axons conduct action potentials without decrement, but when myelinated axons lose…

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: Describe the difference between graded and action potentials.

A: Graded potentials are caused by external stimuli (in sensory neurons) or by neurotransmitters…

Q: Sometimes diverging circuits split into excitatory and inhibitory paths. When might such a circuit…

A: Neural Circuits The synaptic connection has different patterns between neuronal pools. They are…

Q: List the functional class of neurons?

A: Neurons are functionally classified as : Sensory neurons Motor neurons Interneurons

Q: Describe continuous nerve conduction

A: Transmission of action potentials along the nerves occurs in two ways. They are saltatory and…

Q: If all the Ca2+ in the fluid surrounding a neuron were removed, how would this affect the…

A: Action potentials coming at synaptic knobs enhance the release of neurotransmitter into the synaptic…

Q: Describe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory…

A: Introduction :- Conductability is the capacity to conduct the electrical along it's pathway. The…

Q: What happens at the nodes of Ranvier in a myelinated axon?

A: Introduction: Myelinated axons have microscopic gaps within them called nodes of Ranvier. These gaps…

Q: Distinguish the cell types that form the myelin in the PNSversus the CNS.

A: Answer: Introduction: The central nervous system-CNS consists of three main parts are the brain,…

Q: Inhibitory postsynaptic potentials cause what type of change at the post-synaptic membrane?

A: Excitatory  Neuron excites their target post synaptic neurones  or target cells causing it to…

Q: Explain the structure, function, and locations of myelin.

A: The Action Potential is the way of transporting an electrical signal from one neuron to the next. A…

Q: Compare Noncholinergic, Nonadrenergic, Autonomic Neurons?

A: neuron- they have ability to respond to the stimulus and and convert it into the action potential.

Q: Explain the structure of the axon.

A: Neurons or nerve cells are the basic structural and functional unit of the brain. Brain tissue…

Q: Describe how following a threshold stimulus, a action potential is carried along an unmyelinated…

A: Myelination refers to the presence of a myelin sheath on the axons. Myelin sheath is composed of…

Q: Outline the major chemical steps responsible for long-term potentiation.

A: Long-term potentiation is a neural process in which the signals between neurons become stronger with…

Q: Describe the characteristics of action potentials and explain how they are conducted by unmyelinated…

A: The minimum electrical potential required to do a muscle contraction or any action is called action…

Q: Describe the role of neurotransmitters in the function of neurons.

A: The nervous system is one of the major control systems in our body which plays a major role in…

Q: Describe the conditions under which axons can regenerate

A: Axons, also called as nerve fiber is the main part of the body of a neuron that carries nerve…

Q: Explain the arrangement of neurons.

A: Neurons a cell type which is the basic structural and functional unit of the brain. Brain is the…

Q: Describe how depolarization occurs along an unmyelinated neuronal axon

A: Propagation of action potential leads to the depolarization of neuron.

Q: Explain how myelin helps speed up the conduction speed of action potentials along the axon of the…

A:

Q: Identify the four different types of neuronal pools, and explain how they function.

A: The nervous system is a complex system of nerves and specialised cells known as neurons. The nervous…

Q: Explain the cocept of Myelin Sheath ?

A: All organisms are made of billion s of cells. All cells are like the bricks that organise to make up…

Q: Describe saltatory conduction.

A: Neurons (also known as neurons or nerve cells) are the basic components of the brain and nervous…

Q: State the function and location of axon.

A: Nervous tissue is a major class of tissues that plays an essential role in building up the central…

Q: the potassium leak channels were suddenly blocked in a resting neuron, what would happen to its…

A: Normally the neuron has  - 70millivolt resting membrane potential that means the interior of neuron…

Q: Draw a well labelled diagram of a myelinated neuron showing the following parts: Perikaryon,…

A: Neurons are the basic unit of the nervous system. They are the longest cell in the body. Their main…

Q: Describe the function of neuroglia

A: Glia, also called glial cells or neuroglia, are non-neuronal cells in the central nervous system and…

Q: How does myelin aid propagation of an action potential along an axon? How do the nodes of Ranvier…

A: Action potential refers to a change in the membrane potential of the nerve cells by opening and…

Q: What might prevent an EPSP from stimulating action potentials?

A: An excitatory postsynaptic potential (EPSP) is the potential of postsynaptic neuron to create an…

Q: Explain why myelinated axons can propagate (spread) action potentials faster than unmyelinated…

A: The axons of many neurons have a segmented white insulating cover over it. This is called the myelin…

Q: Compare and contrast the neuroglial cells that form the myelin sheaths in both the CNS and the PNS?

A: Neuroglia or glial cells are the non-neuronal cells present in both the central nervous system (CNS)…

Q: Describe the conditions of a neuron at rest.

A: The nervous system is responsible for sensory input, integration of data, and motor output. It is…

Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.